OptionalfeatureOptionallimitationStandalone, user-facing English describing the limitation, suitable for a
toast, e.g. '4K video render requires Unlimited Pro'.
OptionaloriginalOptionalrequiredPlans that would satisfy the gated feature, cheapest-first. ALWAYS an
array when present, e.g. ['unlimited_pro'].
OptionalsubscriptionDiscriminator set to true when this render-path error is a subscription
FEATURE-gate denial (socket error code 4081). The four fields below are
present only when this is true. Apps can branch on it (or use
isSubscriptionLimitError) to show an upgrade prompt instead of a generic
error toast.
Stable machine key for the gated capability, e.g.
'video_4k_render'. Branch on this — never parse ErrorData.limitation prose.